IfcGeometricCurveSet

Definition from ISO/CD 10303-42:1992: A geometric curve set is a collection of two or three dimensional points and curves.

Definition from IAI: The IfcGeometricCurveSet is used for the exchange of shape representations consisting of (2D or 3D) points and curves only.

NOTE: Corresponding STEP entity: geometric_set. Please refer to ISO/IS 10303-42:1994, p. 190 for the final definition of the formal standard.

HISTORY: New entity in IFC Release2x Edition 2.

EXPRESS specification:

ENTITY IfcGeometricCurveSet

SUBTYPE OF (

IfcGeometricSet);

WHERE

WR1

SIZEOF(QUERY(Temp <* SELF\IfcGeometricSet.Elements | 'IFCGEOMETRYRESOURCE.IFCSURFACE' IN TYPEOF(Temp))) = 0;

END_ENTITY;

WR1

No surface shall be included in this geometric set.

ENTITY IfcGeometricCurveSet;

ENTITY IfcRepresentationItem;

INVERSE

LayerAssignments

SET OF IfcPresentationLayerAssignment FOR AssignedItems;

StyledByItem

SET [0:1] OF IfcStyledItem FOR Item;

ENTITY IfcGeometricRepresentationItem;

ENTITY IfcGeometricSet;

Elements

SET [1:?] OF IfcGeometricSetSelect;

DERIVE

Dim

IfcDimensionCount := Elements[1].Dim;

ENTITY IfcGeometricCurveSet;

END_ENTITY;